U0100 on Ford vehicles A module has stopped hearing from the engine control module over the vehicle network

A model year is listed because the code is named in its own record — a bulletin filed against it, or an owner’s complaint about it — not because every one of these vehicles sets it. Counts are documents in NHTSA’s files, not failure rates.

Bulletins and campaigns Ford filed with NHTSA whose summary names U0100. Quote the document number at the service desk — it is a diagnosis the maker has already written down.

• SSM 51488 Service bulletin
  2023-03-24 · Power Train — Automatic Transmission — Control Module (Tcm/Pcm/Tecm)
• Some 2023 F-Super Duty vehicles may set diagnostic trouble code (DTC) U0100:87 in the telematics control unit (TCU) during a diagnostic self-test. This DTC sets when the TCU does not detect a valid signal from the powertrain control module (PCM) through the controller area network (CAN). U0100:87 should be ignored if: no other DTCs are present in the PCM or TCU module, the malfunction indicator la
• SSM 51578 Service bulletin
  2023-04-25 · Electrical System — Body Control Module/Bcm
• Some 2023 F-Super Duty vehicles may set DTCs B109F:55, B1330:9A, U0252:87, U0198:87, U0184:87, U0155:87, U0256:87, and/or U0100:87 in the BCM when a diagnostic self-test is performed. This may be due to an incorrect sequence of an internal measurement unit during self-test causing a false history status DTC (0x48 or 0x08 status). The DTC matures to history status because the BCM detects nothing is
• SSM 53994 Service bulletin
  2025-06-30 · Power Train
• Some 2023-2025 F-Super Duty vehicles may exhibit a no crank/no start with diagnostic trouble code (DTC) U0100 in various modules. This condition may be due to the ground connection at G113. Inspect G113 for proper connection and tighten to 12 +/- 1.8 Nm. If condition remains after tightening G113, continue with normal diagnostics. Refer to Workshop Manual, Section 303-06 Starting System.
• 16-0044 Service bulletin
  2016-03-16 · Power Train
• DPS6 - NO START AND/OR TRANSMISSION ENGAGEMENT OR LOSS OF POWER WITH DTCS U0100, U0101, U1013, U3003 AND/OR P0606 ISSUE Some 2011-2016 Fiesta and 2012-2016 Focus vehicles equipped with a DPS6 transmission may exhibit intermittent concerns of loss of transmission engagement while driving, intermittent no start or a loss of power. These symptoms are usually accompanied by an illuminated Chec
• TSB 16-0129 Service bulletin
  2016-09-26 · Power Train — Automatic Transmission
• Some 2011-2016 Fiesta and 2012-2016 Focus vehicles equipped with a DPS6 transmission may exhibit intermittent concerns of loss of transmission engagement while driving, intermittent no start or a loss of power. These symptoms are usually accompanied by an illuminated Check Engine lamp. Additional symptoms may include messages in the message center indicating hill start assist is not available, tha
• TSB160044 Service bulletin
  2016-03-16 · Power Train
• DPS6 - no satart and/or transmission engagement or loss of power with DTCS u0100, U00101, U1013, U3003 AND/OR P0606
• TSB 21-2405 Service bulletin
  2021-11-17 · Power Train — Automatic Transmission — Control Module (Tcm/Pcm/Tecm)
• Some 2021 Mustang Mach-E vehicles built on or before 09-Sep-2021 may exhibit an illuminated powertrain malfunction indicator (wrench) lamp and/or display the message Shift System Fault  Service required with DTC U0103:87 stored in the secondary on board diagnostic module (SOBDMC). Some vehicles may also exhibit DTCs U0100:00, U0121, U0140, and/or U0155 stored in the gear shift module (GSM). This
• TSB 22-2143 Service bulletin
  2022-04-22 · Parking Brake
• Some 2021-2022 Mustang Mach-E vehicles built on or before 15-Mar-2022 may exhibit a Parking Brake Fault Service Now message in the instrument panel cluster (IPC) and DTCs C2007, C2008, C1034, U0293 and/or U0100 in the antilock brake system (ABS) module. This may be due to an open/corroded circuit near the rear caliper. To correct the condition, follow the Service Procedure to replace the electroni
• TSB 25-2071 Service bulletin
  2025-03-13 · Unknown Or Other
• This article supersedes TSB 21-2405 to update the production fix date. Some of the vehicles listed in the Model statement above may exhibit all of the following conditions: * Illuminated powertrain malfunction indicator (wrench) lamp and/or "Shift System Fault" message * DTC U0103:87 stored in the secondary on board diagnostic module (SOBDMC) Some vehicles may also exhibit DTCs U0100:00, U0121, U0
• SSM 54173 Service bulletin
  2025-08-27 · Electrical System
• Some 2023-2025 F-Super Duty vehicles may exhibit a no crank/no start or intermittent no crank/no start with multiple warning indicators and DTC U0100 stored in the anti-lock brake system (ABS), audio front control module (ACM) and power steering control module (PSCM). This may be due to an incorrectly tightened ground 113 (G113). Inspect G113 for proper connection and tighten to 12 Nm (8.9 ft-lb).
• SSM 54333 Service bulletin
  2025-10-28 · Service Brakes
• Some 2023-2025 F-Super Duty vehicles may exhibit a no crank/no start or intermittent no crank/no start with multiple warning indicators and DTC U0100 stored in the anti-lock brake system (ABS), audio front control module (ACM) and power steering control module (PSCM). This may be due to an incorrectly tightened ground 113 (G113). Inspect G113 for proper connection and tighten to 12 Nm (8.9 ft-lb).
• TSB 24-2117 Service bulletin
  2024-04-24 · Equipment
• Some 2024 F-150 non-Lightning vehicles equipped with minor feature codes C2BAW and FDDAA may exhibit an intermittent Trailer Brake System Fault See Manual message in the instrument panel cluster (IPC), inoperative trailer brake controller, and/or diagnostic trouble codes (DTCs) U0131:87, U0140:87, U0100:87 and/or U0121:87 stored in the trailer module (TRM) when installing the trailer brake control

A stored code names the test that failed, never the part that caused it. The record above is what Ford and its owners have filed about it; the code’s page across every make has the whole file.